Physics, 31.12.2019 06:31 hannah1571
Argon-fluoride excimer lasers are now commonly used in corrective eye surgery. the short, intense pulses of light generated by these lasers are able to cleanly ablate microscopic layers of corneal tissue, effectively reshaping the lens with little or no trauma to the rest of the eye. calculate the energy delivered to the cornea per laser pulse(in j), if one pulse from an argon-fluoride excimer laser contains 2.5*1016photons, each with a wavelength of 193 nm. (1 nm = 10-9m)a. 1.3*10-40 jb. 1.0*10-27jc. 1.0*10-18jd. 6.2*105je. 2.6*10-2j
Answers: 3
Physics, 21.06.2019 17:30
In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j ?
Answers: 2
Physics, 22.06.2019 00:30
Occurs when an energy source transfers heat directly to another subject space; an example would be an object becoming warm by sitting in the sunshine
Answers: 1
Physics, 22.06.2019 07:20
If 2 moles of co_2 at 2l and 500k are expanded reversibly to 20l, more work can be obtained from an adiabatic process than from an isothermal process. is the above statement true or false?
Answers: 3
Physics, 22.06.2019 13:40
Awind turbine is rotating counterclockwise at 0.5 rev/s and slows to a stop in 10 s. its blades are 20 m in length. (a) what is the angular acceleration of the turbine? (b) what is the centripetal acceleration of the tip of the blades at t=0s? (c) what is the magnitude and direction of the total linear acceleration of the tip of the blades at t=0s?
Answers: 1
Argon-fluoride excimer lasers are now commonly used in corrective eye surgery. the short, intense pu...
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